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Propagation Characteristics Analysis for Special Cross Section Waveguides by Cassinian Transformation FDTD Method

ZHOU Xiao jun 1,YU Zhi yuan 2,LIN Wei gan 2(1 Department of Photoelectron Technology,University of Electronic Science and Technology of China,Chengdu 610054,China; 2 Institute of Applied Physics,University of Electronic Science and Technology of  
In this paper,we apply conformal mapping into compact 2D/FDTD algorithm,gave the difference formula of conformal mapping FDTD algorithm,propose the treatment method of focus.The cutoff wavelengths and dispersion curves of elliptic and of cocoon section waveguides are calculated,and the cutoff wavelengths of high order modes of shield two parallel lines are also given by this method.
【Fund】: 国家自然科学基金!(No .697710 2 7)
【CateGory Index】: TN814
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